The Radial JDI Passive Direct Box ensures the natural tone and harmonic balance is retained, bringing out the very essence of the instrument. Employing a Jensen audio transformer as the engine and being the world's finest direct box, the JDI delivers smooth, musical tones to the preamp.

The DW Fearn PDB Passive Direct Box is an accessory for the D.W. Fearn VT-1 or VT-2 Microphone Preamplifier that provides high-quality direct recording of electric instruments. It may also be used with other mic preamps.

The Radial JD6 6-Channel Rackmount Passive Direct Box is a high performance DI, designed for the most demanding studio and live touring applications. Equipped with custom transformers for maximum headroom and low phase distortion, the JD6 renders the most natural sound and is optimized for use with keyboards, audio-visual equipment, computer sound cards, samplers, electronic drums and instruments of all types.

The Radial ProDI Passive Direct Box combines exceptional audio performance with solid dependable construction, making it the ideal general duty direct box for stage and studio. Featuring a custom wound Radial transformer, and an exceptionally high 140k? input impedance, the ProDI handles extreme signal levels at all frequencies without distortion.

The Radial ProD2 Passive Direct Box is a high-quality ultra-compact passive direct box at a more affordable price point. Featuring a custom-made transformer for handling high levels without saturation, the ProD2 is ideal for electronic musical instruments and audio equipment.

The Radial PZ-DI Orchestral Instrument Direct Box is a unique direct box that is specifically designed for acoustic and orchestral instruments. The PZ-DI lets you properly match the input impedance to the source to optimize the frequency response, dynamics and feel so that no matter what type of pickup you employ, you will enjoy smoother, more musically pleasing results.

The Radial StageBug SB-2 Passive DI is a passive direct box designed for high output instruments like active basses, keyboards, and drum machines, along with other buffered sources like DJ mixers, computers and CD players.

The Radial StageBug SB-5 Laptop Direct Box is a compact stereo direct box designed to accommodate laptop computers, tablets and other consumer audio products when amplifying the signal through a PA system.

The Radial ProAV2 Stereo Passive Direct Box is specifically developed with the audio-video integrator in mind. Equipped with a 'Swiss Army' array of connectivity options, the ProAV2 delivers two discrete channels where full stereo functionality is required.